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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 974158Generated: October 30, 2026

p-Toluenesulfonic acid → 1-(4-Methoxyphenyl)-2-[4-(4-pentylcyclohexen-1-yl)-phenyl]-acetylene

https://huagongshe.com/reaction/974158

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactant4-PentylcyclohexanoneHCID 566097—
Reactant4-[(4-bromophenyl) ethynyl] phenyl methyl etherHCID 11709015—
Reactant4-Methoxy-4'-(1-hydroxy-4-pentylcyclohexyl)-tolanHCID 67944121—
SolventWaterHCID 962—
SolventTolueneHCID 1140—
Product1-(4-Methoxyphenyl)-2-[4-(4-pentylcyclohexen-1-yl)-phenyl]-acetyleneHCID 19983831—

Reaction Steps

0.2 mol of 4-methoxy-4'-(1-hydroxy-4-pentylcyclohexyl)-tolan (prepared by reaction of a Grignard compound of 4-bromo-4'-methoxytolan with 4-pentylcyclohexanone) is heated in 400 ml of toluene and with 1 g of p-toluenesulfonic acid for 1 hour using a water separator. The reaction mixture is washed, dried and evaporated. Customary working up gives 1-(4-methoxyphenyl)-2-[4-(4-pentylcyclohexen-1-yl)-phenyl]-acetylene.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05068053
Source datasetuspto-grants-1991_11
ORD IDord-e18e44fb9030425ab55c9db7b212f32e
Source noteuspto-grants-1991_11